Apparatus for storing and discharging inflammable liquids.



P. KES SELER. APPARATUS FOR STORING AND DISGHARG'ING INPLAMMABLELIQUIDS.

APPLIUATION FILED JULY 23, 1912.

1,047,075 I Patented Dec. 10, '1912. I

M1 WW Affomey UNITED STATES PATENT OFFICE.

PAUL KESSELEB, OIIE STEGLITZ, NEAR BERLIN, GERMANY, ASSIGNOR TO THE FIRMOF MANY, A CORPORATION OF GERMANY.

or BERLIN, GER- -APPAIBATUS FOR STORING AND DISOHEGING INFLAMKABLELIQUIDS.

Specification of Letters Patent.

Application filed Tilly 28 1912. Serial Ito. 711,184.

PatentedDec. 10,1912.

To all whom it may concern:

Be it known that I, .PAUL Knssnmn, engineer, a citizen of the Em ire ofGermany, residing at Steglitz, near Eerlin, Germany, have invented.certain new and useful Imrovements in Apparatus for Storing and.ischarging Inflammable Liquids, of which in w ich an intermediate tankhaving a' draw-ofi pipe and compressed gas supplly y "pipe communicateswith the mam tan means of a non-return valve.

. In discharging ordrawinisog inflammai" y means 0 ble liquids fromsurface tan a protective gas under ressure, care must be taken toinsurepositive introduction of the rotective gas into the tank during thewholh time of working, and also to stop the conveying of liquidautomaticallyin case of the piping becom' leaky 'or breaking. Moreparticularly, 1n the latter case the liquid must not be able to 'esca efrom the tank by siphon action when suc action occurs in the dischargepiping but on the contrary means must be provided 'to stop the siphonaction automatically as soon as it starts. These requirements arefulfilled by the apparatus in accordance with this invention in whichthe intermediate tank is disposed within the main tank and the gassupplypipe is so arranged that it can communicate either with the gas-space inthe main tank when the intermediate tank is being filled or with thesource of the compressed gas when the liquid is to be discharged. r

One way of carrying out the invention is shown byway of example in the.accompanying drawing in which,

Figure 1 is a vertical section shown diagrammatically, and Figs. 2 and3- are detail views in horizontal section.

Within the main tank 1 is arranged a smaller. liquid tank 2 connected ba check ornon-return valve 3 to the liqui chamber of the main tank. Tothe inner tank 2 is connecteda discharge or draw-01f pipe 4 extending towithin a short distance of its base and carried outward through thecover 5 of the main tank, a jacket 6 surrounding the exterior portion ofthe pipe. In the discharge pipe 4 is formed a stop cock 7 of some wellknown safety type which is not liable to break. A compressed gas supplypipe 8 "opens into the cover of the inner tank 2 this plpe extendingoutward through the main tank cover 5 and having its exterior portionsurrounded by ajacket pipe 9. The portion of the compressed gas pipe 8situated outside the tank 1 is connected by means of a three way cock10, to a pipe 11 leading to the source of supplyof compressed gas, andalso to a pipe 13 connected to the gas space 12 in-the tank 1, this cockbeingalso surrounded by a jacket pipe 14.

From the upper part ofthe discharge pipe 4' is branched off a pipe 15opening into the gas space 12 of the tank 1, having a considerablysmaller cross-section than the discharge pipe, a jacket pipe '16connected to the jacket pipe 6, surrounding the pipe 15.] The jacketpipe 9 of the compressed gas pipe 8 1s connected by a branch pipe 17 tothe gas supply pipe 11 and is also connected by a branch pipe 18 to thelower portion of the 'acket pipe 6. The jacket pipe 6 of the disc argepipe 4 communicates b means of a' pipe 19, with the jacket 14 oft e pipe13, and by means of a pipe 20 with the acket pipe 9 of the compressedgas pipe 8, so that the working pressure obtains in" all the jacketpipes. The charging pipe 21 of the tank -1 1s connected to its cover 5.

The working of the apparatus above described takes place in thefollowing manner:W-hen there is no pressure, or only a comparativelysmall pressure, in the inner tank 2, the non-return valve 3 opens underthe action of the hydrostatic pressure of the liquid contained in thetank 1, whereby the tank 2 is filled. If any protective gas re mains inthe tank 2 from the previous dis- 1n wgich in that case acts as a gasoutlet pipe I and owing to the three-way cock 10being set in the mannershown in Fig. 3 the gas passes through the return pipe 13 into the schamber 12 of the tan In that way,

t e non-oxidizing compressed gas used for dischargingthe inflammableliquid constantly passes from the inner tank 2 into the tank 1; When theliquid is to be drawn off from the inner tank 2, the three-way cock inthe compressed gas pipe 8, is brought into the position shown in Fig. 2,and the cock 7 opened, whereupon the compressed gas entering the tank 2through the pipe 8, will force the liquid out through the pipe 4 and theopen cock 7. During that time, comparatively small quantities of theliquid discharged through the pipe 4 from the tank 2, will return intothe tank 1 through the ipe branched off from the discharge pipe 4, andin that way the si-- phoning action will be sto ped as soonas it starts.ince not only the discharge pipe 4, but also the compressed gas pi e 8',to ether with the gas return pipe 13 aonnect permanently to the gaschamber 12 of the tank and having its connection to the pipe 8controlled, as by the cock 10) are jacketed by automatically pipes whichare in constant communication with .the source of supply of thecompressed gas, in the event of the gas pipes breakin the operation willbe automatically stopped, owing to the blowing off of the compressed gasthen taking place. Moreover in the event of the return pipe 13 breaking,its

jacket insures, even in that case, the pas-.

sage of the protective gas into the tank 1 during the refilling of theinner tank 2, and

consequently the passage of the protective gas from the innertankthrough the-pipes 8 and 13, into the tank 1 is also insured.

In refilling the inner tank, the protective gas escapes from said tankthrough, the pipe B into the pipe 13 (the cook 10 being at that time inthe position shown in Fig. 3), and through the break or leak of the pipe13 into the jacket pipe 14, thus reachlng the gas space of the tank 1.If the jacket pipe 14 were omitted, the gas would escape into I theatmosphere during'refilling, in case the return pipe 13 should be brokenor leak..

What I claim is '1. In apparatus for storing and discharging inflammableliquids by means of a non-- oxidizing gas under pressure, thecombination of a main surface tank adapted to contain inflammable liquidand gas under pressure, an inner tank disposed within the -main tank, anon-return valve establishing communication between said inner tank andthe liquid contained in the mam tank, 2.

liquid discharge pipe leading from the inner tank to without the maintank, a stop cock in the exterior part of said pipe, a

source of compressed gas, a pipe connecting thissource with the interiorof the inner tank, a gas return pipe, connecting the gas chamber of themain tank with a portionof the gas supply pipe exterior of the main tankand means for shutting oil such conpipes for the purpose specified.

nection between the gas supply and return 2. In apparatus'for'storingand discharg of compressed gas, a liquid discharge pipe leading from theinner tank to without the main tank, a stop-cock in the exterior part ofsaid pipe, a jacket for the exterior portion of said pipe, a pipeconnecting the source of compressed gas with the interior of the innertank, a gas return pipe con- .necting the gas chamber of the mam tank'With the portion of gas supply pipe exterior of the main tank, meansfor shutting ofli' communication between the gas supply and returnpipes, jacket pipes inclosing the portions of said supply and returnpipes between said means and the main tank, pipes connecting the jacketsof the gas return and discharge pipes with the source of compressed gasand pipes establishing communication between these jackets and that ofthe gas supply-pipe.

In apparatus for storing and discharging'inflammable liquids by means ofa nonoxidizing gas under pressure, the combination of a main surfacetank adapted to contain inflammable liquid and gas under pressure,aninner tank disposed within the main tank, a non-return valveestablishing'communication between said inner tank and the liquidcontained in the main tank, a siphonlike liquid discharge pipe leadingfrom the inner tank to without the main tank, a stopcock in the exteriorpart of said pipe, a branch pipe connecting the upper portion of thedischarge pipe with the gas spaceof the main tank, said branch being ofless cross-sectional area than the main discharge pipe and adapted tocounteract siphoning action in the -main discharge pipe in the event ofa leak or break, a jacket for the exterior portions of said mam andbranch discharge pipes, a source of compressed gas, a pipe connectingthis source with the intefrior of the. inner tank, a gas return pipeconnecting the gas chamber of the main tank with the portion of the gassupply pipe exterior of the main tank, jacket pipes inply and returnpipes, pipes connecting 10 and return pipes and between the jacket of1.6 N Q Q.

a C: 2 {U Q- 2 GD *3 l .E

.2 rs 2 b O Q osing rt I of the su the latter and the supply ofcompressed gas 01 the emnor p0 Ions gas the. during the discharge of thehqu1d jacket of the main and branch testimony whereof I have signed ipewith the jacket of the gas return pipe, :PCClfifHltlOIl 1n the presenceof two subscribhoth said jackets communicating with the mg witnesses. aT source of compressed gas, p1 connetgtlssgg PAUL KESSELER said jacketsdwlzllllriglat of kefcomlp fling W1: asses V as 1 an a -wayeoc orsu 1n 5c zn munication between the gas supply Hmmr Hasrrm,

' Wommm Ham.

It is hereby certified that the third word in the name of the in LettersPatent No; 1,047,075, granted December 10, 1912, upon the application ofPaul Kesselen'of Steglitz, near Berlin, Qe'rmany, for an improvement inApparatus for Storing and Discharging Inflammahle Liquids? waserroneously written and Hunekefl whereas said word should have beenwritten and printed Hi'ineke; and that the said Letters Patent should beread with this correction therein that the same may conform to therecord of the case in the Patent Oflice.

Signed and sealed this 28th day of January, A. 1)., 1913.

[SEAL] 0. c. 'BILLINGS,

Acting Uommz'asioner of Patents.

ply and return pi closing the exterior port ons of the gas sigpipesconnecting jacket of the main and branch discharge pipe with the jacketof the gasreturn plpe,

th said jackets communicating with the ing witnesses.

10 and return pipes and between the jacket of [mean] the latter and thesupply of compressed gas during the discharge of the liquld.

In testimony whereof I have signed -pecification in the presence of twosubscrib- PAUL KZESSELER. Witnesses l Hmmr Wommm HAUPT.

It is hereby certified that the third word in the name of the in LettersPatent No; 1,047,075, granted December 10, 1912, upon the application ofPaul Kesseler,1of Steglitz, near Berlin, Qe'rmany, for an improvement inApparatus for Storing and Discharging Inflammable Liquids, waserroneously written and Hunekefl whereas said word shoiild have beenwritten and printed Hiineke; and that the said Letters Patent should beread with this correction therein that the same may conform to therecord of the case in the Patent Oflice.

Signed and sealed this 28th day of ar A. 1)., 1913.

c. c. 'BILLINGS,

Acting Uommz'asioner of Patents.

